For estimation purposes only. This calculator provides a general estimate and does not constitute tax advice. Please consult a qualified tax professional for personalized guidance.

Side hustle income is subject to both self-employment tax (15.3% for Social Security & Medicare) and income tax (at your marginal rate). This calculator shows you how much to set aside so you're not surprised at tax time.

Your Information

2025 tax year


Your W-2 Job

Your regular job income helps us determine what tax bracket your side hustle income falls into.

Your salary/wages before taxes. If no W-2 job, enter $0.

Your Side Hustle

Total revenue from your side business before expenses
Equipment, software, supplies, mileage, home office, etc.

Deductions (Optional - reduces your tax)

Only if you're NOT eligible for health insurance through your W-2 job
Contributions specifically from your side hustle income
Most side hustles qualify. Phases out at higher incomes.

Important Disclaimer

This calculator estimates tax on side hustle income only. Your actual tax situation may vary based on other income, deductions, and credits. The QBI deduction has limitations for certain service businesses. Consult a qualified tax professional for personalized advice.